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Finding the Fourth Proportional to 276,228.93, 381,199.86 and 163,051.68

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Solution

The fourth proportional to 276,228.93, 381,199.86 and 163,051.68 is: 225,013.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,228.93 : 381,199.86 = 163,051.68 : x
  2. Step 2: Convert to fraction form
    276,228.93/381,199.86 = 163,051.68/x
  3. Step 3: Cross multiply
    276,228.93x = 381,199.86 × 163,051.68
  4. Step 4: Simplify right side
    276,228.93x = 62,155,277,588.76
  5. Step 5: Solve for x
    x = 62,155,277,588.76/276,228.93
  6. Step 6: Final answer
    x = 225,013.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.